add %ghc_docdir for package's docdir

I think rpm or at least redhat-rpm-config should provide such a macro

ghc-rpm-macros.ghc

@@ -21,11 +21,13 @@ fi
 # configure
 %cabal_configure\
 %ghc_check_bootstrap\
-%cabal configure --prefix=%{_prefix} --libdir=%{_libdir} --docdir=%{_docdir}/%{name} --libsubdir='$compiler/$pkgid' --ghc %{!?ghc_without_dynamic:--enable-executable-dynamic} %{?cabal_configure_options} $cabal_configure_extra_options
+%cabal configure --prefix=%{_prefix} --libdir=%{_libdir} --docdir=%{ghc_docdir} --libsubdir='$compiler/$pkgid' --ghc %{!?ghc_without_dynamic:--enable-executable-dynamic} %{?cabal_configure_options} $cabal_configure_extra_options
 
 # install
 %cabal_install %cabal copy --destdir=%{buildroot} -v
 
+# F20 has unversioned docdir's
+%ghc_docdir %{_docdir}/%{name}
 # root dir for ghc docs
 %ghcdocbasedir %{_docdir}/ghc/html
 # libraries doc dir

ghc-rpm-macros.spec

@@ -6,7 +6,7 @@
 #%%global without_hscolour 1
 
 Name:           ghc-rpm-macros
-Version:        1.0.6
+Version:        1.0.7
 Release:        1%{?dist}
 Summary:        RPM macros for building packages for GHC
 
@@ -90,6 +90,9 @@ EOF
 
 
 %changelog
+* Fri Jul 26 2013 Jens Petersen <petersen@redhat.com> - 1.0.7-1
+- add ghc_docdir for package's docdir since not provided by standard macros
+
 * Fri Jul 26 2013 Jens Petersen <petersen@redhat.com> - 1.0.6-1
 - also make %ghc_lib_build docdir unversioned
 - require redhat-rpm-config >= 9.1.0-50.fc20 for unversioned docdir